ALMA – The key to the Sun’s coronal heating problem.

Publications

Peer reviewed articles (40)

Analysis of Pseudo-Lyapunov Exponents of Solar Convection Using State-of-the-Art Observations

Author(s): Giorgio Viavattene, Mariarita Murabito, Salvatore L. Guglielmino, Ilaria Ermolli, Giuseppe Consolini, Fabrizio Giorgi, Shahin Jafarzadeh
Published in: Entropy, 23/4, 2021, Page(s) 413, ISSN 1099-4300
Publisher: Multidisciplinary Digital Publishing Institute (MDPI)
DOI: 10.3390/e23040413

The multi-thermal chromosphere

Author(s): J. M. da Silva Santos, J. de la Cruz Rodríguez, J. Leenaarts, G. Chintzoglou, B. De Pontieu, S. Wedemeyer, M. Szydlarski
Published in: Astronomy & Astrophysics, 634, 2020, Page(s) A56, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201937117

The penumbral solar filaments from the photosphere to the chromosphere

Author(s): M Murabito, I Ermolli, F Giorgi, M Stangalini, S L Guglielmino, S Jafarzadeh, H Socas-Navarro, P Romano, F Zuccarello
Published in: Journal of Physics: Conference Series, 1548, 2020, Page(s) 012017, ISSN 1742-6588
Publisher: Institute of Physics
DOI: 10.1088/1742-6596/1548/1/012017

Umbral chromospheric fine structure and umbral flashes modelled as one: The corrugated umbra

Author(s): Vasco M. J. Henriques, Chris J. Nelson, Luc H. M. Rouppe van der Voort, Mihalis Mathioudakis
Published in: Astronomy & Astrophysics, 642, 2020, Page(s) A215, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202038538

Spectropolarimetric fluctuations in a sunspot chromosphere

Author(s): M. Stangalini, D. Baker, G. Valori, D. B. Jess, S. Jafarzadeh, M. Murabito, A. S. H. To, D. H. Brooks, I. Ermolli, F. Giorgi, C. D. MacBride
Published in: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 379/2190, 2021, Page(s) 20200216, ISSN 1364-503X
Publisher: Royal Society of London
DOI: 10.1098/rsta.2020.0216

A chromospheric resonance cavity in a sunspot mapped with seismology

Author(s): David B. Jess, Ben Snow, Scott J. Houston, Gert J. J. Botha, Bernhard Fleck, S. Krishna Prasad, Andrés Asensio Ramos, Richard J. Morton, Peter H. Keys, Shahin Jafarzadeh, Marco Stangalini, Samuel D. T. Grant, Damian J. Christian
Published in: Nature Astronomy, 4/3, 2020, Page(s) 220-227, ISSN 2397-3366
Publisher: Nature Research
DOI: 10.1038/s41550-019-0945-2

Transverse motions in sunspot super-penumbral fibrils

Author(s): R. J. Morton, K. Mooroogen, V. M. J. Henriques
Published in: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 379/2190, 2021, Page(s) 20200183, ISSN 1364-503X
Publisher: Royal Society of London
DOI: 10.1098/rsta.2020.0183

Alfvénic Perturbations in a Sunspot Chromosphere Linked to Fractionated Plasma in the Corona

Author(s): Deborah Baker, Marco Stangalini, Gherardo Valori, David H. Brooks, Andy S. H. To, Lidia van Driel-Gesztelyi, Pascal Démoulin, David Stansby, David B. Jess, Shahin Jafarzadeh
Published in: The Astrophysical Journal, 907/1, 2021, Page(s) 16, ISSN 1538-4357
Publisher: IOP Publishing
DOI: 10.3847/1538-4357/abcafd

Magnetohydrodynamic Nonlinearities in Sunspot Atmospheres: Chromospheric Detections of Intermediate Shocks

Author(s): S. J. Houston, D. B. Jess, R. Keppens, M. Stangalini, P. H. Keys, S. D. T. Grant, S. Jafarzadeh, L. M. McFetridge, M. Murabito, I. Ermolli, F. Giorgi
Published in: The Astrophysical Journal, 892/1, 2020, Page(s) 49, ISSN 1538-4357
Publisher: IOP Publishing
DOI: 10.3847/1538-4357/ab7a90

Evidence of the multi-thermal nature of spicular downflows

Author(s): Souvik Bose, Luc Rouppevan der Voort, Jayant Joshi, Vasco M. J. Henriques, Daniel Nóbrega-Siverio, Juan Martínez-Sykora, Bart De Pontieu
Published in: Astronomy & Astrophysics, 654, 2021, Page(s) A51, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202141404

High-resolution observations of the solar photosphere, chromosphere, and transition region

Author(s): L. H. M. Rouppe van der Voort, B. De Pontieu, M. Carlsson, J. de la Cruz Rodríguez, S. Bose, G. Chintzoglou, A. Drews, C. Froment, M. Gošić, D. R. Graham, V. H. Hansteen, V. M. J. Henriques, S. Jafarzadeh, J. Joshi, L. Kleint, P. Kohutova, T. Leifsen, J. Martínez-Sykora, D. Nóbrega-Siverio, A. Ortiz, T. M. D. Pereira, A. Popovas, C. Quintero Noda, A. Sainz Dalda, G. B. Scharmer, D. Schmit, E.
Published in: Astronomy & Astrophysics, 641, 2020, Page(s) A146, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202038732

ALMA and IRIS Observations of the Solar Chromosphere. I. An On-disk Type II Spicule

Author(s): Georgios Chintzoglou, Bart De Pontieu, Juan Martínez-Sykora, Viggo Hansteen, Jaime Cruz de la Rodríguez, Mikolaj Szydlarski, Shahin Jafarzadeh, Sven Wedemeyer, Timothy S. Bastian, Alberto Sainz Dalda
Published in: The Astrophysical Journal, 906/2, 2021, Page(s) 82, ISSN 1538-4357
Publisher: IOP Publishing
DOI: 10.3847/1538-4357/abc9b1

Spicules and downflows in the solar chromosphere

Author(s): Souvik Bose, Jayant Joshi, Vasco M. J. Henriques, Luc Rouppe van der Voort
Published in: Astronomy & Astrophysics, 647, 2021, Page(s) A147, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202040014

Characterization of shock wave signatures at millimetre wavelengths from Bifrost simulations

Author(s): Henrik Eklund, Sven Wedemeyer, Ben Snow, David B. Jess, Shahin Jafarzadeh, Samuel D.T. Grant, Mats Carlsson, Mikołaj Szydlarski
Published in: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 379/2190, 2021, Page(s) 20200185, ISSN 1364-503X
Publisher: Royal Society of London
DOI: 10.1098/rsta.2020.0185

High-frequency oscillations in small chromospheric bright features observed with Atacama Large Millimetre/Submillimetre Array

Author(s): J. C. Guevara Gómez, S. Jafarzadeh, S. Wedemeyer, M. Szydlarski, M. Stangalini, B. Fleck, P. H. Keys
Published in: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 379/2190, 2021, Page(s) 20200184, ISSN 1364-503X
Publisher: Royal Society of London
DOI: 10.1098/rsta.2020.0184

High-resolution wave dynamics in the lower solar atmosphere

Author(s): D. B. Jess, P. H. Keys, M. Stangalini, S. Jafarzadeh
Published in: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 379/2190, 2021, Page(s) 20200169, ISSN 1364-503X
Publisher: Royal Society of London
DOI: 10.1098/rsta.2020.0169

ALMA and IRIS Observations of the Solar Chromosphere. II. Structure and Dynamics of Chromospheric Plages

Author(s): Georgios Chintzoglou, Bart De Pontieu, Juan Martínez-Sykora, Viggo Hansteen, Jaime de la Cruz Rodríguez, Mikolaj Szydlarski, Shahin Jafarzadeh, Sven Wedemeyer, Timothy S. Bastian, Alberto Sainz Dalda
Published in: The Astrophysical Journal, 906/2, 2021, Page(s) 83, ISSN 1538-4357
Publisher: IOP Publishing
DOI: 10.3847/1538-4357/abc9b0

High-resolution spectropolarimetric observations of the temporal evolution of magnetic fields in photospheric bright points

Author(s): P. H. Keys, A. Reid, M. Mathioudakis, S. Shelyag, V. M. J. Henriques, R. L. Hewitt, D. Del Moro, S. Jafarzadeh, D. B. Jess, M. Stangalini
Published in: Astronomy & Astrophysics, 633, 2020, Page(s) A60, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201936545

Observing the Sun with the Atacama Large Millimeter/submillimeter Array (ALMA): High-Resolution Interferometric Imaging

Author(s): M. Shimojo, T. S. Bastian, A. S. Hales, S. M. White, K. Iwai, R. E. Hills, A. Hirota, N. M. Phillips, T. Sawada, P. Yagoubov, G. Siringo, S. Asayama, M. Sugimoto, R. Brajša, I. Skokić, M. Bárta, S. Kim, I. de Gregorio-Monsalvo, S. A. Corder, H. S. Hudson, S. Wedemeyer, D. E. Gary, B. De Pontieu, M. Loukitcheva, G. D. Fleishman, B. Chen, A. Kobelski, Y. Yan
Published in: Solar Physics, 292/7, 2017, ISSN 0038-0938
Publisher: Kluwer Academic Publishers
DOI: 10.1007/s11207-017-1095-2

Observing the Sun with the Atacama Large Millimeter/submillimeter Array (ALMA): Fast-Scan Single-Dish Mapping

Author(s): S. M. White, K. Iwai, N. M. Phillips, R. E. Hills, A. Hirota, P. Yagoubov, G. Siringo, M. Shimojo, T. S. Bastian, A. S. Hales, T. Sawada, S. Asayama, M. Sugimoto, R. G. Marson, W. Kawasaki, E. Muller, T. Nakazato, K. Sugimoto, R. Brajša, I. Skokić, M. Bárta, S. Kim, A. J. Remijan, I. de Gregorio, S. A. Corder, H. S. Hudson, M. Loukitcheva, B. Chen, B. De Pontieu, G. D. Fleishmann, D. E. Gary, A
Published in: Solar Physics, 292/7, 2017, ISSN 0038-0938
Publisher: Kluwer Academic Publishers
DOI: 10.1007/s11207-017-1123-2

First analysis of solar structures in 1.21 mm full-disc ALMA image of the Sun

Author(s): R. Brajša, D. Sudar, A. O. Benz, I. Skokić, M. Bárta, B. De Pontieu, S. Kim, A. Kobelski, M. Kuhar, M. Shimojo, S. Wedemeyer, S. White, P. Yagoubov, Y. Yan
Published in: Astronomy & Astrophysics, 613, 2018, Page(s) A17, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201730656

Linear Polarization Features in the Quiet-Sun Photosphere: Structure and Dynamics

Author(s): S. Kianfar, S. Jafarzadeh, M. T. Mirtorabi, T. L. Riethmüller
Published in: Solar Physics, 293/8, 2018, ISSN 0038-0938
Publisher: Kluwer Academic Publishers
DOI: 10.1007/s11207-018-1341-2

Intermittent Reconnection and Plasmoids in UV Bursts in the Low Solar Atmosphere

Author(s): L. Rouppe van der Voort, B. De Pontieu, G. B. Scharmer, J. de la Cruz Rodríguez, J. Martínez-Sykora, D. Nóbrega-Siverio, L. J. Guo, S. Jafarzadeh, T. M. D. Pereira, V. H. Hansteen, M. Carlsson, G. Vissers
Published in: The Astrophysical Journal, 851/1, 2017, Page(s) L6, ISSN 2041-8213
Publisher: The American Astronomical Society.
DOI: 10.3847/2041-8213/aa99dd

First Spectral Analysis of a Solar Plasma Eruption Using ALMA

Author(s): Andrew S. Rodger, Nicolas Labrosse, Sven Wedemeyer, Mikolaj Szydlarski, Paulo J. A. Simões, Lyndsay Fletcher
Published in: The Astrophysical Journal, 875/2, 2019, Page(s) 163, ISSN 1538-4357
Publisher: The American Astronomical Society.
DOI: 10.3847/1538-4357/aafdfb

The solar chromosphere at millimetre and ultraviolet wavelengths

Author(s): S. Jafarzadeh, S. Wedemeyer, M. Szydlarski, B. De Pontieu, R. Rezaei, M. Carlsson
Published in: Astronomy & Astrophysics, 622, 2019, Page(s) A150, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201834205

Propagating Spectropolarimetric Disturbances in a Large Sunspot

Author(s): M. Stangalini, S. Jafarzadeh, I. Ermolli, R. Erdélyi, D. B. Jess, P. H. Keys, F. Giorgi, M. Murabito, F. Berrilli, D. Del Moro
Published in: The Astrophysical Journal, 869/2, 2018, Page(s) 110, ISSN 1538-4357
Publisher: IOP Publishing for the American Astronomical Society
DOI: 10.3847/1538-4357/aaec7b

First high-resolution look at the quiet Sun with ALMA at 3mm

Author(s): A. Nindos, C. E. Alissandrakis, T. S. Bastian, S. Patsourakos, B. De Pontieu, H. Warren, T. Ayres, H. S. Hudson, T. Shimizu, J.-C. Vial, S. Wedemeyer, V. Yurchyshyn
Published in: Astronomy & Astrophysics, 619, 2018, Page(s) L6, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201834113

Height Dependence of the Penumbral Fine-scale Structure in the Inner Solar Atmosphere

Author(s): Mariarita Murabito, I. Ermolli, F. Giorgi, M. Stangalini, S. L. Guglielmino, S. Jafarzadeh, H. Socas-Navarro, P. Romano, F. Zuccarello
Published in: The Astrophysical Journal, 873/2, 2019, Page(s) 126, ISSN 1538-4357
Publisher: IOP Publishing for the American Astronomical Society
DOI: 10.3847/1538-4357/aaf727

The magnetic properties of photospheric magnetic bright points with high resolution spectropolarimetry

Author(s): Peter H Keys, Aaron Reid, Mihalis Mathioudakis, Sergiy Shelyag, Vasco M J Henriques, Rebecca L Hewitt, Dario Del Moro, Shahin Jafarzadeh, David B Jess, Marco Stangalini
Published in: Monthly Notices of the Royal Astronomical Society: Letters, 2019, ISSN 1745-3933
Publisher: Blackwell Publishing
DOI: 10.1093/mnrasl/slz097

Multiwavelength High-resolution Observations of Chromospheric Swirls in the Quiet Sun

Author(s): Juie Shetye, Erwin Verwichte, Marco Stangalini, Philip G. Judge, J. G. Doyle, Tony Arber, Eamon Scullion, Sven Wedemeyer
Published in: The Astrophysical Journal, 881/1, 2019, Page(s) 83, ISSN 1538-4357
Publisher: IOP Publishing
DOI: 10.3847/1538-4357/ab2bf9

Exploring the Sun with ALMA

Author(s): Bastian, T. S.; Bárta, M.; Brajša, R.; Chen, B.; Pontieu, B. D.; Gary, D. E.; Fleishman, G. D.; Hales, A. S.; Iwai, K.; Hudson, H.; Kim, S.; Kobelski, A.; Loukitcheva, M.; Shimojo, M.; Skokić, I.; Wedemeyer, S.; White, S. M.; Yan, Y.
Published in: The Messenger, 171, 2018, Page(s) 25-30, ISSN 0722-6691
Publisher: ESO

Penumbral decay observed in active region NOAA 12585

Author(s): M. Murabito, S. L. Guglielmino, I. Ermolli, P. Romano, S. Jafarzadeh, L. H. M. Rouppe van der Voort
Published in: Astronomy & Astrophysics, 653, 2021, Page(s) A93, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202141034

An overall view of temperature oscillations in the solar chromosphere with ALMA

Author(s): S. Jafarzadeh, S. Wedemeyer, B. Fleck, M. Stangalini, D. B. Jess, R. J. Morton, M. Szydlarski, V. M. J. Henriques, X. Zhu, T. Wiegelmann, J. C. Guevara Gómez, S. D. T. Grant, B. Chen, K. Reardon, S. M. White
Published in: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 379/2190, 2021, Page(s) 20200174, ISSN 1364-503X
Publisher: Royal Society of London
DOI: 10.1098/rsta.2020.0174

Magnetoacoustic wave energy dissipation in the atmosphere of solar pores

Author(s): Caitlin A. Gilchrist-Millar, David B. Jess, Samuel D. T. Grant, Peter H. Keys, Christian Beck, Shahin Jafarzadeh, Julia M. Riedl, Tom Van Doorsselaere, Basilio Ruiz Cobo
Published in: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 379/2190, 2021, Page(s) 20200172, ISSN 1364-503X
Publisher: Royal Society of London
DOI: 10.1098/rsta.2020.0172

Signatures of ubiquitous magnetic reconnection in the deep atmosphere of sunspot penumbrae

Author(s): Luc H. M. Rouppe van der Voort, Jayant Joshi, Vasco M. J. Henriques, Souvik Bose
Published in: Astronomy & Astrophysics, 648, 2021, Page(s) A54, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202040171

The 3D structure of the penumbra at high resolution from the bottom of the photosphere to the middle chromosphere

Author(s): Mariarita Murabito, Ilaria Ermolli, Fabrizio Giorgi, Marco Stangalini, Salvo L. Guglielmino, Shahin Jafarzadeh, Hector Socas-Navarro, Paolo Romano, Francesca Zuccarello
Published in: Proceedings of the International Astronomical Union, 15/S354, 2019, Page(s) 448-451, ISSN 1743-9213
Publisher: Cambridge University Press
DOI: 10.1017/s1743921319010032

Downflowing umbral flashes as evidence of standing waves in sunspot umbrae

Author(s): T. Felipe, V. M. J. Henriques, J. de la Cruz Rodríguez, H. Socas-Navarro
Published in: Astronomy & Astrophysics, 645, 2021, Page(s) L12, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202039966

The Sun at millimeter wavelengths II. Small-scale dynamic events in ALMA Band 3

Author(s): Henrik Eklund, Sven Wedemeyer, Mikolaj Szydlarski, Shahin Jafarzadeh, Juan Camilo Guevara Gómez
Published in: Astronomy & Astrophysics, 644, 2020, Page(s) A152, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202038250

Observing the Sun with the Atacama Large Millimeter/submillimeter Array – from continuum to magnetic fields

Author(s): Sven Wedemeyer, Mikolaj Szydlarski, Jaime de la Cruz Rodriguez, Shahin Jafarzadeh
Published in: Proceedings of the International Astronomical Union, 15/S354, 2019, Page(s) 24-37, ISSN 1743-9213
Publisher: Cambridge University Press
DOI: 10.1017/s1743921319009906

The Sun at millimeter wavelengths I. Introduction to ALMA Band 3 observations

Author(s): Sven Wedemeyer, Mikolaj Szydlarski, Shahin Jafarzadeh, Henrik Eklund, Juan Camilo Guevara Gomez, Tim Bastian, Bernhard Fleck, Jaime de la Cruz Rodriguez, Andrew Rodger, Mats Carlsson
Published in: Astronomy & Astrophysics, 635, 2020, Page(s) A71, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201937122

Thesis dissertations (1)

Investigating dynamic small-scale events in the Sun with the Atacama Large Millimeter/sub-millimeter Array

Author(s): Eklund, Henrik
Published in: Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo, 2021, ISSN 1501-7710
Publisher: Faculty of Mathematics and Natural Sciences, University of Oslo

Conference proceedings (1)

Observations of the solar chromosphere with ALMA and comparison with theoretical models

Author(s): Brajsa, Roman; Sudar, Davor; Skokic, Ivica; Benz, Arnold O.; Kuhar, Matej; Kobelski, Adam; Wedemeyer, Sven; White, Stephen M.; Ludwig, Hans-G.; Temmer, Manuela; Saar, Steven H.; Selhorst, Caius L.
Published in: The 20th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun, held 29 July -3 August, 2018 in Boston, MA., 2018, Page(s) id.37
Publisher: zenodo
DOI: 10.5281/zenodo.1462863